Abstract
This article demonstrates the effect of exfoliated nano-clay on the microcellular foam processing of amorphous and crystalline nylon. Amorphous and crystalline nylon 6 nanocomposites are prepared using a twin-screw extruder. The exfoliated nanocomposite structures are characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Nylon and its nanocomposites are foamed in extrusion using supercritical CO2. Subsequently, the cell morphologies of nylon and its nanocomposite foams are investigated. It appeared that the nano-clay not only enhanced cell nucleation, but also suppressed cell deterioration during the microcellular foaming of nylon.
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